Computer keyboard



FIG. 1 is a top, front and side perspective view of a computer keyboard embodying our new design; the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a side elevational view thereof. 

The ornamental design for a computer keyboard, as shown and described. 